This appears to me to be a grievous misrepresentation of the FEMA study whose 25 person team did the definative analysis. As these buildings were constructed by the Port Authority they didn't have the same Fire Marshall and City Code permitting that a typical project had and when those agencies were questioned, wild speculation as to causes was allowed to be repeated in the press. The real studies, by the professionals and industry experts showed exactly the opposite to those off-the-cuff armchair comments at the time.